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Water pump tear down round three HELP

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Old Oct 3, 2023 | 12:20 PM
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carlbradlin's Avatar
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Default Water pump tear down round three HELP

Hobbyist mechanic here, working on things as they break down, I may have bit off more than I should have on this last one. TLR, if I screw up the cam to crank positions and start the car, did I just bend rods and need a rebuild? Or is the rough idle just a sign that I need to retime the car? See details below.

2013 Ford Flex, AWD, 3.5 V6 (non-turbo), 130K miles, all regular maintenance, ran great.

Water pump failed, I decided to tackle the job which is a big, long, process as it is underneath the timing chain. Everything was going fine, until it came time to put the timing chain back on. My marks werent perfectly clear and I replaced the chain off by one link on the RH of the motor. Reassembly was otherwise uneventful. On starting the car, the idle would occasionally hiccup and it threw code P0017 (Crankshaft Position Sensor and the Camshaft Position Sensor are out of alignment).
I gambled and lost on the placement of that link.

I opened the motor back up a second time to retime. Naively, I assumed that with the timing chain tensioner removed, the chain was no longer under tension. I thought I could just pull the tensioner, move the chain one link, and put it all back together. I was wrong. After pulling the tensioner and guide, both the LH and RH camshafts jumped positions. I'm not sure how far either traveled, but it was a quick flick of movement before the chain caught.

Next, I bought the AllData DIY subscription for the car, and follwed the procedure to replace the timing chain and position it correctly, and count the links between the timing marks. I rotated the crank with a socket, and rotated cams with a crescent. Got the cams in the right position and used the cam holding tool to keep them in place. I counted the links 4 times each (2 laps) and repositioned everything. Got it all buttoned up, coolant, oil, and.....now its a very rough idle.

So, did I wreck my valves or bend rods by starting and let idle for 5 seconds (because the cam and cranks are out of alignment)? Or is the timing way off, because when I adjust the cam positions I didnt consider top dead center or the position of the crank? I know I need to pull the motor apart a third time, I'm just trying to avoid having to do it a fourth time. I have the AllData subscription for a month, but I'm really hoping to get this sorted out tomorrow.
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